Weft-end holder for weft-replenishing looms



S. S. JACKSON WEFT END HOLDER FOR WEFT REPLENISHING- LOOMS Filed Sept. 1923 Patented Get. M, 1924..

nrrsn fiTAT SIMEON S. JACKSON, OF HYDE PARK, BOSTON, MASSACHUSETTS, ASSIGNOR TO THE STAFFORD COMPANY, OF BOSTON, MASS QEUSETTS, A. CORPORATION 013 MA$SA- CHUSETTS.

WEFT-END HOLDER FOB, WEFT-BJEPLENISHING LOO'MS.

Application filed September 8, 1923. Serial No. 661,548.

T 0 allwhom it may concern:

Be it known that I, Sutton S. JAoKsoN, a subject of Great Britain, residing at Hyde Park, Boston, in the county of Suffolk, State of Massachusetts, have invented a certain new and useful Improvement in \Veft-End Holders for lVeft-Replenishing Looms, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention is designed for employment in weft-replenishing looms of the type in which reserve weft or filling carriers are supported in a rotatable magazine, from which they are transferred one by one to the working shuttle by the action of the automatic weft-replenishing devices. It relates in particular to the weft-end holders which are provided in connection with such magazines to hold the starting ends of the weft or filling yarns of the said carriers so as to cause the automatic threading of a working shuttle when a new supply of weft or filling has been placed within the shuttle.

The usual form of weft-end holder, detachably aflixed to the outer end of a rotatable magazine, in axial alinement with the magazine, comprises a shank having at its outer end a knob with partly spherical exterior. The said shank is tapered slightly from the knob inward toward the end there of by which the device is engaged with the hub of the bell-shaped outermost circular plate of the magazine. At the time of placing a fresh filling carrier in the magazine, the starting end of the weft or filling yarn wound on the said carrier is drawn by the weaver outward from the tip end of the carrier, bent inwardly over the edge of said bell-shaped plate, and then wrapped around the weft-end holder alongside its knob. The surfaces of the knob and shank customarily are smooth, and the shank is tapered, to facilitate the operation of slipping an accumulated mass of weft or filling yarns off the holder after the latter has been temporarily detached from the magazine for the purpose of being stripped.

The said usual form of weft-end holder, just described, has the disadvantage or drawback that an empty or clean holder pere mits an undesirable slackening f the first weft-ends t a ar e the ew t at is to say, the first few coils or turns of a weft-end or ends that are wound on a clean holder at the junction of the shank and knob have a tendency to work or slip inward along the cone, away from the knob, to shank-portions of smaller diameter. This results in loosening of the said coils or turns, and in slackening of the weft-end between the filling carrier and the weft-end holder, and sometimes the weft-end hangs down and is caught upon the picker-stick. The tendency to this slipping, loosening, etc., is noticeable particularly in the case of yarns of asmooth slippery character, such as rhea or ramle.

The general object of the invention is to obviate the disadvantage or drawback aforesaid by providing a weft-end holder which shall be so constructed as to prevent the inward slipping, loosening, and slackening, etc, to which reference has been made.

My invention comprises a weft-end holder consisting in av knob, a shank by means of which to engage the holder with a magazine, and a sleeve that is removably mounted upon said shank and formed with a conical exterior tapering toward the knob; preferably with the small end of said sleeve rounded 0E or chamfered to leave a small V-shaped space between the sleeve and the knob into which the first few turns of filling wound upon the holder may enter.

An embodiment of my invention is shown in the accompanying drawings, in which,-

Fig. 1 is a sectional view of the bellshaped outermost disk of a rotatable magazine and its central mounting, showing the said embodimentof the invention applied thereto.

Fig.2 shows the weft-end holder of Fig. 1, separately, partly in longitudinal section.

Fig. 8 is an end view of the said holder, looking at the same from the left hand side in Figs. 1 and 2.

In the drawings,-

At 1 is a disk of bell shape such as is commonly employed at the outer end of one of the well-known forms of rotatable weft-holding magazines employed in connection with weft-replenishing looms. It is provided with a hub 2 adapted to be secured by clamping screw 3 upon a loose sleeve 4 turning upon a sai 5 w ch in P c s supp e y '8 of the weft-end holder, such shank being'securely held therein by a clamping screw 6.

- The illustrated weft-end holder comprises a'knob 7, a shank 8 formedintegrally with the knob, the said'shan'k being cylindrical throughout the greater portionw-of itszlength,

I and a sleeve 9 mounted upon said shank 1 and: having a conical end OfISilldiSlQGVB 1s'.-'outern1ost.and as exterior, .The small rounded .off 1.01- chamfered as shown :at'lO so that when suchzend is pushed up against the lirmerzsurface of.1the:knob 7. a slight v Veshaped.iannularigroove l1 will-be-left between the small :end.-iof the :sleeveiandthe knob 7. The knob '7 is cut: away, at the point "where ;the shank cjoins it, to form an annular-surface at ri'ghtlangles toathe axis ofthe shank, andtheEsmall end .Of the-sleeve contacts= withthis annular surface. To secure the sleeve .9xagainst rotation .upon the shank 8, a -.pin.v-::or key 12 -:is fixed :in the V knob 7 parallel to the surface of thefshank,

and is received withint-a Phole provided in the rsmallren'dof "the -:sl'eeve.-9. The inner end lot the :shank sis: flattened as shown at 13 fforiengagement byathe aclamping screw 6, to holdfit linithe hub .Q-iof the disk 1 and cause it to turn in unison therewith;

.;Inzuse,:t-he first cfew turns of weft en ds are wound about the weft end holder at the junctionmf the knob 7 and the sleeve 9, wedging within the V shaped groove L1. The engagement of "the afirst' :few turns in the said groove: prevents their unwinding,

' aIIdJthey-in turn'sprevent the. unwinding of the" subsequently applied turns; while the end chamfer'e'd -to-forin a inwardly flaringshape of the cone-shaped sleeve obviates the) tendency of the turns or coils which are wound thereon to slip inwardly along the end-holder and become slack by reason of such slipping.

When it is desired'to remove the accumulation of weft-ends from theholder, the screw 6 .is loosened and the whole holder detached from the magazine, and the sleeve 9 wslipped-01f from the shankS. The accumulated mass of yarns may then be easily slipped by hand from the-sleeve,.\and .from the .knob and its stem, without -resort to the practice of cuttingandzhackingcoff with ak-n'ife.

- I iclaimwas my: invention,-

1. A weft end holder for weft-replenishing looms comprising a vknob, having a shank which is fixedlyconnected therewith, and a sleeve'unounted .upon said 'sl1ank,-;removable therefrom bymovementzaway from thezknob, :having a .conical exterior, with the small "end of such sleeve adjacent the knob.

--2.=A weft-send holder ';f01 weft-replenishingelooms comprisinga knob, a shank, and aosleeve removably' mountedwupon said shank having a nonioalxextenior tapering toward the knob, and ialsozhaving ,its; small yarn recervlng groove alongside the knob.

I 3. A weft-end holder for weft replenislr ing looms comprising a .zlrnob, a shank, a sleeve zremovably vmounted; upon said? shank having a conical exterior tapering-toward the knob, and also having its small end cham'fered 'to :form a yarn-receiving: groove alongside itlle knob, and 511183118 zto lock-the sleeve 3*to prevent relative rotation.

' SIMEON -S.--JAOKSON. 

